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本工作利用SC-7气相色谱仪上已有的接点进行改装,引入输送吸附质的气路,用特征点迎头色谱法测定整根毛细管柱内载体的表面积。
In this work, the existing contacts on the SC-7 gas chromatograph were used for modification. The gas path for adsorbate was introduced, and the surface area of the carrier in the whole capillary column was measured by the characteristic point on-head chromatography.